Journal of the Association of Engineers, India

P. C. Bose ¹

Affiliations
1 Golden Jubilee Committee, IN

Abstract

It is a great honour for me to welcome you, sir, Minister for Commerce and Industries, West Bengal; Dr. B. D. Nag Chaudhury, Member. Planning Commission and the delegates and engineers who have graced this auspicious Golden Jubilee Celebration of The Association of Engineers, Our Chief Guest to-day, to inaugurate this function, is Sri Sushil Kumar Dhara, who is well known in Indian politics for his sacrifices for attaining independence.

Full Text

   

P. C. Bose

Abstract

Mr. President, Col. Vijh and member friends, This is my proud privilege to speak before you as Chairman of the Golden Jubilee Celebration of the Association of Engineers. Herewith my thanks and gratitude to you all for giving me this opportunity.

Full Text

   

P. C. Bose

Abstract

Friends:This is the third time in succession-you have done me the honour of electing me your President and I am grateful to you. I am also deeply moved to think that I am the first President of your Association in Independent India. I know it is your affection and love for me-more than my intrinsic value and ability- Which has prompted you to take this step. I however feel sure-with your co-operation and advice-I shall be able to discharge my duties in furthering the cause of this Association.

Full Text

   

P. C. Bose ¹

Affiliations
1 Public Health Dept., Bengal, IN

Abstract

Preliminary

Adequate supply of potable Water is the primary need of a modern town. The next most important need is the disposal of used water and of solid wastes specially Containing human excreta.

Full Text

     

P. C. Bose ¹

Affiliations
1 Public Health Dept., Govt. of Bengal, IN

Abstract

Gentlemen,

At the outset I thank the Association of Engineers for electing me the President of the Association for the year. I know my limitations and I feel diffident to fill this onerous post at this juncture to guide the destiny of the Association which is bound to play a very important part in the future planning of India.With the help and matured deliberation of the learned members of the Council and with the co-operation of members in general-I feel, however, I shall be able to maintain the tradition and further the cause of this Association and the people of India.

Full Text

   

P. C. Bose ¹

Affiliations
1 Corporation of Calcutta, IN

Abstract

Preliminary-In any sewage treatment work final disposal of sludge produced from the plant is the most difficult part and requires most careful consideration and planning. It is specially so in the case of a city like Calcutta the growth of which has been phenomenal. According to the Census Report of 1931 the population was 1.2 millions, in 1941 it rose to 2.1 millions and if census were to be taken now it would perhaps show a population of 3.6 millions including the members of the allied forces now present in the city. The problem, therefore, takes on a vast magnitude as large quantities of sewage-sludge would have to be dealt with daily and solids disposed of expeditiously without creating any nuisance.

Full Text

     

P. C. Bose ¹

Affiliations
1 Calcutta Corporation, IN

Abstract

During the past few years there has been an increasing recognition of the role played by small variations in acidity or alkalinity in many reactions which are of great technical importance. Such considerable is the effect produced by a small variation in acidity or alkalinity that the terms 'slightly acid' or 'slightly alkaline' have been rendered vague without real meaning and hence the fundamental importance of hydrogen-ion concentration which is nothing but the intensity of term for acidity or alkalinity as opposed to quantity term has been fully realised. Thus hydrogen-ion concentration is of fundamental importance in processes which involve the proteins, such as manufacture of artificial milk foods, leather tanning, manufacture of glue and gelatin, wool and silk industries. By a careful adjustment of hydrogen-ion concentration, many of the defects of the soil can be remedied, water can be softened, sugar juices can be purified, metallic hydroxides and certain insoluble salts can be separated, sludges can be precipitated, colloidal emulsions can be broken down, colloidal suspensions of clay can be flocculated, electroplating can be efficiently carried out, pure metals electrolytically deposited and many operations which depend upon interfacial forces can be made satisfactory.

Full Text

     

P. C. Bose

Abstract

History. Sewage and storm water of Calcutta, since the inception of the waterborne drainage system in the City in 1869 used to be discharged into the river Bidyadhari about 5 miles to the east of the City-in its crude form. This river being a tidal one sewage and storm water used to be stored in a large reservoir about five miles in length and were discharged into the river during the period of low tides. The reservoir had the storage capacity of 8 hours sewage flow plus the storm water for 8 hours at the rate of 1/4" rainfall per hour. The above system of disposal of Calcutta's sewage and rainfall worked satisfactorily for a considerable period of time-without causing any appreciable nuisance by forming sludge banks in the river or causing any harm to the fish life in the same.

Full Text

     

P. C. Bose ¹

Affiliations
1 Calcutta Corporation, IN

Abstract

We are all more or less familiar with street floodings in Calcutta during the monsoon and most of us have the sad experience of being marooned when main streets and roads are transformed into miniature lakes and the only form of locomotion available is either hackney carriages or rickshaws. At such times much annoyance is felt and bitter hard words are used against authorities concerned to allow such state of things to continue in the 2nd City of the British Empire from year to year and from generation to generation. If it be any consolation to you gentlemen, I could inform you that even the first City of the British Empire-London-with its immense resources does not escape from such visitations and other important Cities of the World which are better placed-both financially and geographically also meet with the same fate.

Full Text

     

P. C. Bose ¹

Affiliations
1 Calcutta Metropolitan Water & Sanitation Authority, IN

Abstract

It is very gratifying to note that this seminar which has been sponsored by the Association of Engineers, considered, Equipment and Materials which would be necessary for the development of Calcutta Metropolitan District in particular, and also be in general necessary for all engineering projects.

Full Text